DISTRIBUTION OF THE QUATERNARY HEAVY MINERALS OF HEBEI PLAIN

• 作 者: 倪明云 陈望和
• 机 构: Hydrogeologic and Engineering Geologic Brigade, Hebei Bureau of Geology and Mineral Resources, Shiji
• 出 处: Science in China,Ser.B
• 发表日期: 1986年09期
• 关键词: minerals unstable widespread plain representative district weathering strata 重矿物

This article is a result of the synthetic analysis and study of the heavy minerals from nearly eightly boreholes in the Hebei plain. According to the resistance of minerals to weathering, heavy minerals (generally taking the specific gravity of 5 as a dividing line) are divided into two kinds——stable minerals and unstable minerals. Since unstable minerals (especially amphibole) which are very sensitive to climate are widespread in this district, they have typical representative significance. Emphasis is laid on the study of the vertical and lateral distributions of the unstable minerals and their variation. The dominant factors that control and influence their variation are also discussed.

According to the resistance of minerals to weathering, heavy minerals (generally taking the specific gravity of 5 as a dividing line) are divided Since two kinds of stable minerals and unstable minerals. Since the unstable minerals (especially amphibole) which are very sensitive to climate are widespread in this district, they have typical representative significance. Emphasis is laid on the study of the vertical and lateral distributions of the unstable minerals and their variation. The dominant factors that control and influence their variation are also discussed.